AMSONIA hubrichtii

Threadleaf/Arkansas Blue Star
height: 2-3′
spread: 3′
zone: 4
habit: upright mound

Bushy clumps of elegant, upright stems are crowned with steel blue buds and starry gray-blue flowers held in graceful umbels. Willowy needle-like leaves, which eventually burnish to brilliant gold, persistent chocolate-hued seed heads, give a rich autumn show.